20700011665159 has 2 divisors, whose sum is σ = 20700011665160. Its totient is φ = 20700011665158.

The previous prime is 20700011665033. The next prime is 20700011665171. The reversal of 20700011665159 is 95156611000702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20700011665159 - 2¹³ = 20700011656967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20700011665189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10350005832579 + 10350005832580.

It is an arithmetic number, because the mean of its divisors is an integer number (10350005832580).

Almost surely, 2^{20700011665159} is an apocalyptic number.

20700011665159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20700011665159 is an equidigital number, since it uses as much as digits as its factorization.

20700011665159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 20700011665159 in words is "twenty trillion, seven hundred billion, eleven million, six hundred sixty-five thousand, one hundred fifty-nine".